Firmware Update; Theory Of Operation - G&L MMC-A2 Hardware Manual

MMC Ethernet TCP/IP Option Module
GDLNK
COL
OUT
OUT
6.4

Firmware Update

See Appendix B of the PiCPro online help for firmware update information.
6.5

Theory of operation

The MMC Ethernet - TCP/IP module contains a 32-bit processor to handle
TCP/IP, PPP (future), and Ethernet protocols. It allows you to use the
Ethernet network architecture and the TCP/IP standard set of protocols to
communicate and access other modules, computers, or the Internet and its
resources. The design is based on the IEEE 802.3 specifications. The data
rate is 10 Mbps. The diagram below provides an overview.
124
Figure 6-4: Ethernet - TCP/IP LEDs
Diagnostic
DIAG
IN
OUT
Ethernet 10Base-T good link (green)
Ethernet transmitting data (green)
PREV
Ethernet collision (yellow)
Polarity reversed on 10Base-T receiver (yellow)
IN
Com 1 transmit data (green)
Com 1 receive data (green)
IN
Com 2 receive data (green)
Com 2 transmit data (green)
MMC Hardware Manual
(yellow)
Ethernet receiving data (green)
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